Artistic Licence

Candle-Power CP12 User Guide Version 4-8

Candle-Power CP12User Guide

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Page 2 Candle-Power CP12 User Guide

Ref. Type Description

1 Connection DMX Input

2 Connection DMX Loop & Term**

3 LED Data & Power

4 Connection CC dimming outputs

5 Connection Output cable shield

6 Connection Temperature Sensor

7 Connection Power Input8 Connection Mains Earth

Connections

5

5

4321 6 4 5 6

6 4 5 6487

Candle-Power CP12DMX512 Controlled Low-Voltage Current Dimmer

Disconnect power when connecting lampsPower: 15-48V DC Input, 12A Max, Duty Cycle 75%Internal fuse:.500mA Electronic FuseChannels: 3 to 12 channelsControl Input: DMX512(1990), DMX512-A, RDM V1.0

Indicators:-Red Green StatusOn/Flash Off No DMXOn On Good DMXBlinking On Temperate fault Artistic Licence

PowerData

Sensors:-�Internal Temperature�Input Voltage�External Temperature x 4

If temperatures exceed safe working limitsthe outputs will be shutdown automatically

(Please refer to the manual for the externaltemperate sensor specifications)

Module Colour Coding:-Current Rating Colour-350mA - Green500mA - Red700mA - Blue550mA - Grn & Blue100mA - Grn & Red

Fitted:

Module 3:-

Rating:

Rating:

Module 3:-Indicators

GN

D

GN

D

GN

D

15-4

8V

15-4

8V

15-4

8V

Sensor 3

Connect DAT+ toTERM at end of

DMX line

Rating:

Module 2:-

Fitted:

Module 3:-

Rating:

Rating:

Module 4:-

Please refer to manualregarding use of Mains

Earth and shieldconnections

EARTH

Output 2

CO

M+

RE

D

GR

N

BLU

SH

IELD

S-I/

P

S-G

ND

Sensor 2

CO

M+

RE

D

GR

N

BLU

Output 3

CO

M+

RE

D

GR

N

BLU

Output 4

SH

IELD

S-G

ND

S-I/P

Sensor 4

SH

IELD

S-I/P

S-G

ND

Rating:

Module 1:-Output 1

CO

M+

RE

D

GR

N

BLU

SH

IELD

S-I/

P

S-G

ND

Sensor 1Power Input

This device complies with part 15of the FCC Rules. Operation is

subject to the following twoconditions:

(1) This device may not causeharmful interference, and

(2) this device must accept anyinterference including interference

that may cause undesiredoperation.

DMX512 In

CO

M

DA

T-

DA

T+

DMX512 Loop

CO

M

DA

T-

DA

T+

Term

Mounting Diagram

** A passive loop-through connection allows onward connection to other DMX512 devices. If this feature is not required then the signal must be terminated. The product contains an internal termination resistor. This is enabled by fitting a wire link between Term and DAT+.

Candle-Power CP12 User Guide

Candle-Power CP12 (hereafter CP12) is a constant current dimmer. It is designed to control high power LED devices such as those available from Lumileds™ and Cree. The product is presented in a DIN rail case that allows rail or surface mounting; it is powered via an external power supply unit (15-48 VDC).

CP12 provides up to 12 channels of constant current dimming (i.e. 4 sets of RGB circuits). Each of the 12 outputs can drive up to 12 high power LEDs in series, giving a total load capability of 144 LEDs.

The control interface is DMX512 and RDM. All parameters (including start address) are set using RDM. This can be done using an RDM programmer, such as Jump-Start, or an Art-Net-to-DMX node that supports RDM, such as Art-Lynx O/P.

Overview

Page 3

Summary of Key Features y Up to 12 channels (4 RGB circuits) of

constant current LED dimming

y 15V to 48V with a variable number (1-12) of high power LEDs per channel

y Automatic compensation for cable voltage drop

y High efficiency and low heat generation

y Smooth dimming curve with good low end control

y Modular solution - drive different rated LEDs from the same unit

y DMX512 and RDM interface as standard

y Four external temperature sensors with full feedback via RDM

y Internal temperature and voltage sensor

y Short-proof and self-protecting outputs

y Asymmetric Frequency Modulation

y DIN rail or surface mount

Power CP12 is powered from an external power supply (15 to 48 VDC). We recommend that a

Product variants

DMX connection

CP12 is available in a number of variants, which are defined by the modules that are fitted.

The respective part numbers of the modules (CPM) and composite products (CP12) are as follows:

y CPM-yyy mA

y CP12-xx-yyy mA

One CPM module has three channels, and a composite CP12 product can have up to four modules fitted.

It follows that xx, which is the number of channels, can be 3, 6, 9 or 12.

Dimming & ModulationCP12 is a constant current dimmer. This means that it puts out a controlled current, so the fixture does not need electronics for current control of the LED.

This style of dimming is used for higher power LED products such as Rebel. The LED fixtures connected to the outputs must be designed for constant current operation. This product must not be used to drive ordinary constant voltage LEDs.

CP12 modulates the LED outputs using a technique called Asymmetric Frequency Modulation (AFM). AFM is an evolution of the frequency modulation technique pioneered by Artistic Licence and published to the public domain in 2002.

CP12 has a built in terminating resistor as specified in the DMX512 specification. If the CP12 is to be situated at the end of the DMX line the ‘TERM’ & ‘DAT+’ terminals can be connected together to provide suitable termination.

ferrite core be fitted onto the DC power lines as close as possible to the CP12 to protect the unit from any electrical spikes that appear on the DC line. CP12 must be disconnected from the PSU before connecting LEDs to the outputs.

Candle-Power CP12 User Guide Page 4

Module Configuration

Sensors

LED indication

The current rating of the CP modules are factory configured. The current selection must match the type of LED being driven, e.g.

y Luxeon 1W LEDs require 350mA

y Luxeon 3W LEDs require 700mA

To identify the current rating of a module, there is a simple colour coding found on the bottom left of the module and on the front panel of the CP12, defined in the following table:

Module fitting instructions:

y Remove power to the unit, and ensure anti-static precautions are observed

y Lift the clear top lid and carefully remove the bottom cover

y Remove module that is to be replaced (if applicable)

y Slot in new module making sure pins are in the correct position

y Ensure module current rating is correct for the LEDs being controlled

y Module slots are clearly labelled and must be used in numerical order: slot 1, slot 2, slot 3 then slot 4

y Replace cover and lid

Colour CurrentGreen & Red 100 mA

Green 350 mARed 500 mA

Green & Blue 550 mABlue 700 mA

CP12 features internal and external sensors:

Internal

External

Temperature Faults

CP12 features red and green LED indicators for power and data respectively. The meanings are summarised in the following table:

yyy is the current rating. Stock modules are rated at 350 mA, 500 mA or 700 mA (100 mA and 550 mA are available as custom order).

It is possible to mix modules, so that CP12 can drive different rated LEDs on each of its outputs.

RED GREEN STATUSFlashing Off No DMX

On On Normal operation

Blinking On/Off Temperature fault

Warning: There is no protection for current types. If a 700mA module is fitted to control 350mA LEDs then damage is likely to result.

The product has an internal voltage and temperature sensor. Both these are reported via RDM. The temperature sensor monitors the internal motherboard temperature and will shut down the entire product if the value exceeds about 60°C. Normal operation resumes once the product has cooled.

The CP12 provides four inputs for connection of an external temperature sensor. The inputs are calibrated against the following resistive temperature sensor:

Epcos - B57621C103J62

This would normally be attached to the heatsink of the fixture LEDs. If the sensor exceeds 75°C +/- 5°C, the relevant module will shut down its 3 outputs. If temperature sensing is not required, no connection to the sensor inputs should be made.

If any of the temperature sensors (internal or external) registers a fault, the red LED indicator on the CP12 will blink (see chart below).

Page 5 Candle-Power CP12 User Guide

Operation & System DesignWith traditional low power LEDs, cable distances between the power supply and fixtures are limited as any voltage drop developed over the cable will cause the LED fixtures to appear as different colours or intensity. The voltage drop is larger when using smaller gauge cable and when more current is required.

In contrast, CP12 eliminates voltage drop developed over the cables with its unique control technology, providing excellent colour tracking between fixtures.

That said, certain guidelines must be observed for good performance. There are several variables that need to be taken into account when designing a system:

y Number of LEDs in series within a fixture

y Vf of the LEDs and total Vf (where Vf denotes the forward voltage characteristic of an LED, i.e. the voltage dropped over the LED, which is manufacturer specified).

y Maximum voltage drop across the cable

y PSU output voltage

y Temperature of the modules

The following table summarises the recommended PSUs for a variety of common situations.

When modules greater than 350mA are used and the PSU voltage greatly exceeds the total Vf, the CP12 must be de-rated. Please see the duty cycle chart below as an example, based on Vf = 4 V.

De-rating

No. of LEDs in series

Total Vf for a 350 mA LED

Recommended PSU voltage for

350 mA

Total Vf for a 700 mA LED

Recommended PSU voltage for

700 mA1 3.5 V 15 V 4 V 15 V2 7 V 15 V 8 V 15 V6 21 V 24 V 24 V 28 V12 42 V 48 V 48 V n/a

PSU VoltageModule rating

No. of LEDs in series

15 V 24 V 32 V 40 V 48 V

700 mA 1 100% 75% 75% 50% 50%700 mA 2 100% 100% 75% 75% 50%700 mA 4 100% 100% 100% 75% 75%700 mA 6 n/a n/a 100% 100% 75%700 mA 10 n/a n/a n/a n/a 100%

Page 6 Candle-Power CP12 User Guide

Application Diagram

Wiring Diagram

DMX Controller

RGB Fixture

Internal temperature sensors

RGB Fixture

PSUDMX

CP12

In this example, CP12 is fitted with four modules, each of which drives an RGB fixture.

The diagram below shows the connections that would be used if a single module was fitted to Output 1. The output cable shield is represented by the dotted cylinder, and the external temperature sensor is connected.

Candle-Power CP12 Specification

Mechanical y Housing: DIN rail case

y Material: Lexan Plastic - UL94-V0 rated

y Overall dimensions: 95 mm (H) x 159 mm (W) x 73.5 mm (D)

y Weight: Up to 0.25 kg (module dependent)

y Mounting: 35 mm DIN rail or surface mount

y Country of manufacture: UK Environmental

y Operating temperature: 0°C to 40°C

y Storage temperature: -10°C to +50°C

y Operating relative humidity (max): 80% non-condensing

y IP rating: IP20 indoor use only

y Certification: CE, WEEE, RoHS

y Warranty: 2-year (return to base)Power & Electrical

y Input voltage: 15 - 48 VDC

y Input connector: 6-pin screw terminal (1 no.)

y Input power (max): 440 W

y Duty cycle: 80% @ 25°C

y DC fuse: internal resettable fuse for control electronics

y Earth / Shield connector: 1-pin screw terminal (4 no.)

CE Compliance

Candle-Power CP12 is CE compliant when installed in a shielded and earthed metal

case

Page 7 Candle-Power CP12 User Guide

DMX512 Input y Protocols: DMX512, DMX512 (1990),

DMX512-A, RDM

y Input mode: non-isolated

y Input ESD protection: 15 kV

y 3-pin screw terminal DMX Input (1 no.)

y 4-pin screw terminal DMX Loop (1 no.)

Constant Current Outputs y Voltage: As input

y Protection: Short circuit & open circuit

y Current: Module dependent

y Modulation: Asymmetric frequency modulation (3 kHz)

y Current regulation frequency: 330 kHz

y Connection: 4-pin screw terminal RGB common anode output (4 no.)

Sensors and Indicators y External sensor: Temperature

y Internal sensor: Temperature & Voltage

y Sensor connection: 2-pin screw terminal sensor input (4 no.)

y LED indicator: Power / DMX / Sensor faultRDM

y Configuration: start address (via RDM)

y Data: Lamp hours, lamp strikes, footprint, temperature sensor (int. & ext.), voltage sensor

Ordering Info y Product code: CP12-xx-yyy mA

y Package contents: CP12 product, user guide

y Accessories: PSU-48-10-DR

WarrantyAll products are covered from date of purchase by a two-year return to base warranty.

By return to base, we mean that the customer is responsible for all costs of transport to and from Artistic Licence.

Returns will not be accepted without prior authorisation. In order to discuss a request to return goods, please email:

Sales@ArtisticLicence.com ComplianceAll Products manufactured or sold by Artistic Licence Engineering Ltd are fully compliant with the appropriate CE, FCC, and RoHS regulations. Product specific information is available on request. Waste Electrical & Electronic Equipment (WEEE)Artistic Licence is a member of a WEEE compliance scheme and will happily recycle any of our products that you, at your expense, return to us.

Due to our policy of continuing product improvement specifications are subject to change without notice

Artistic Licence The Mould Making WorkshopSoby MewsBovey TraceyTQ13 9JGUnited Kingdom

Telephone +44 (0) 20 8863 4515

Email: Sales@ArtisticLicence.comWeb: www.ArtisticLicence.com

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